AERCO BMK 2.0 LN Nat. Gas - Manual (Page 31)

INITIAL START-UP
Chapter 4 - INITIAL START- UP
4.1 INITIAL START- UP REQUIREMENTS
The initial start-up of the Benchmark Boiler is
comprised of the following steps:
• installation completed
• combustion calibration
• proper setting of controls and limits
• mode of operation settings (see Chapter 5)
• safety device testing (see Chapter 6)
Installation should be fully completed before
performing initial start-up; and the start-up must
be complete prior to putting the unit into service.
Starting a unit without the proper piping, venting,
or electrical systems can be dangerous and may
void the product warranty. The following start-up
instructions should be followed precisely in order
for the unit to operate safely, at a high thermal
efficiency, and with low flue gas emissions.
Initial unit start-up is to be performed ONLY by
AERCO factory trained start-up and service
personnel. After following the steps in this
chapter, it will be necessary to perform the mode
of operation settings in chapter 5, and the safety
control test procedures in chapter 6 to complete
the initial unit start-up.
An AERCO Gas Fired Startup Sheet, included
with each BENCHMARK, must be completed for
each unit for warranty validation and a copy must
be returned promptly to AERCO at:
AERCO International, Inc.
159 Paris Ave.
Northvale, NJ 07647
WARNING !
DO NOT ATTEMPT TO FIRE THE BOILER
WITHOUT FULL WATER LEVEL. THIS
CAN SERIOUSLY DAMAGE THE UNIT
AND MAY RESULT IN PERSONAL
INJURY OR PROPERTY DAMAGE. THIS
IS NOT COVERED BY WARRANTY.
CAUTION!
All installation procedures in Chapter 2 must
be completed before attempting to start the
unit.
4.2 TOOLS AND INSTRUMENTATION
FOR COMBUSTION CALIBRATION
To properly perform combustion calibration, the
proper instruments and tools must be used and
correctly attached to the unit. The following
paragraphs outline the necessary tools and
instrumentation as well as their installation.
4.2.1 REQUIRED TOOLS AND
INSTRUMENTATION
The following tools and instrumentation are
necessary to perform combustion calibration of
the unit:
1. A digital combustion analyzer with oxygen
accuracy to ± 0.2%, and carbon monoxide in
PPM.
2. A 16" W.C. manometer or equivalent gauge
and plastic tubing.
3. Adjustable wrench to remove 1/8” plug from
pressure sensing port on SSOV.
4. Two, 1/8" NPT to barbed fittings for use with
the gas supply regulator.
5. AERCO differential gas pressure regulator
adjustment tool P/N 123643
6. Small and large flat blade screwdrivers.
7. Tube of silicone adhesive
4.2.2 INSTALLING THE SUPPLY GAS
MANOMETER
1. Check to ensure that the 1/8” NPT ball valve
downstream of the SSOV is closed.
2. Remove the 1/8" NPT pipe plug from the ball
valve downstream of the safety shut off
valve (SSOV) (see Figure 4.1).
3. Install a barbed fitting into the pipe plug
tapping.
4. Attach one end of a length of plastic tubing
to the barbed fitting and one end to the 16"
W.C. manometer.
5. Open the 1/8” NPT ball valve downstream of
the SSOV.
4-1